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renderer_vulkan: adjust window origin and swizzle independently

This commit is contained in:
Liam 2023-11-30 12:33:26 -05:00
parent 127bfb81d5
commit e7dd968ac4
1 changed files with 10 additions and 4 deletions
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14
src/video_core/renderer_vulkan/vk_rasterizer.cpp
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@ -75,14 +75,20 @@ VkViewport GetViewportState(const Device& device, const Maxwell& regs, size_t in
const float width = conv(src.scale_x * 2.0f);
float y = conv(src.translate_y - src.scale_y);
float height = conv(src.scale_y * 2.0f);
bool y_negate = regs.window_origin.mode != Maxwell::WindowOrigin::Mode::UpperLeft;
if (!device.IsNvViewportSwizzleSupported()) {
y_negate = y_negate != (src.swizzle.y == Maxwell::ViewportSwizzle::NegativeY);
const bool lower_left = regs.window_origin.mode != Maxwell::WindowOrigin::Mode::UpperLeft;
const bool y_negate = !device.IsNvViewportSwizzleSupported() &&
src.swizzle.y == Maxwell::ViewportSwizzle::NegativeY;
if (lower_left) {
// Flip by surface clip height
y += conv(static_cast<f32>(regs.surface_clip.height));
height = -height;
}
if (y_negate) {
y += conv(static_cast<f32>(regs.surface_clip.height));
// Flip by viewport height
y += height;
height = -height;
}